阿彌陀經疏 1.11

1.11

今言佛者，即釋迦化主，乃究竟人也，如此解者，豈但識果地之崇高必由因克，抑亦達自心之微妙本有果性，是則始凡理具趣取無怯，終聖在佛上慢不生。

Now, the word 'Buddha' here refers to the transforming master Śākya, who is the ultimate person. If one understands in this way, not only does one recognize that the exalted state of fruition must be achieved through causes, but one also realizes that one's own wondrous mind originally possesses the nature of fruition. Thus, at the beginning, ordinary beings are endowed with the principle and advance without cowardice; at the end, sages abide in Buddhahood and arrogance does not arise.